To get to the bottom of this, a chemist recently took bone from the mummy of a Nubian child and dissolved it in hydrogen fluoride, a nasty acid that helps extract tetracycline.

最近，一名化学家提取了一个努比亚幼儿木乃伊的骨头，在深入底层的过程中，将它融化泡入了一种肮脏的氢氧化物——酸中，有助于提取其中的四环素。

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Then, we recover as much of the sulfuric acid as possible, before diluting what remains in the bottom of the electrolytic cell.

然后我们要尽量把硫酸都移出电解槽。最后再稀释留在电解槽底部的硫酸。

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Introduces the design method for bottom structure of large scale phosphoric acid storage tank based engineering practice.

通过工程实践，介绍大型磷酸贮罐底部结构的设计方法。

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People who scored in the bottom 25% in omega-3 fatty acid levels were compared with the rest of the study participants.

WSJ: A Diet Rich in Fish May Help the Aging Brain

In 1993, he pulled his ship alongside a Cuban bottom trawler on the Grand Banks and attacked it with butyric acid.

NEWYORKER: Neptune��s Navy